Exit During the first month of development, how many layers of cells make up the embryo? A. 1 B. 2 C. 3 D. 4
2 answers:
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Answer:
Last option.
Explanation:
The graph is attached.
In the image we can observe that all green arrows are point towards the exit. So the right answer is the last one.
<em>Go out through the door, turn right and proceed to the emergency exit at the end of the hall</em>
